of Brain Tumors
are many types of brain tumors.
The most common type of brain tumor in adults is glioma comprising
nearly 1/2 of all brain tumors. Gliomas arise from the structural
cells that hold the brain together. Gliomas are further divided
into particular types:
Glioblastoma multiforme - One-half of gliomas, or 1/4
of all brain tumors, are glioblastoma multiforme which is
the most deadly and hard to treat brain cancer.
b) Astrocytomas make up 15% of brain tumors, and may
either be low-grade, which means indolent and curable, or
higher grade, which are aggressive.
c) Other gliomas, at about 2% each, include ependymoma,
which arises from the cells which line inner cavities of the
brain (called the ventricles),oligodendroglioma which comes
from another structural cell, and medulloblastoma which is
much more common in children.
these other glioma types can be either indolent or aggressive,
depending upon their grade, and the treatment are different
for the various types.